//------------------------------------------------------------------------------
// Copyright (c) 2005, 2006 IBM Corporation and others.
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// which accompanies this distribution, and is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// Contributors:
// IBM Corporation - initial implementation
//------------------------------------------------------------------------------
package org.eclipse.epf.library.edit.category;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.MissingResourceException;
import org.eclipse.emf.common.command.Command;
import org.eclipse.emf.common.notify.AdapterFactory;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EReference;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.edit.EMFEditPlugin;
import org.eclipse.emf.edit.command.AddCommand;
import org.eclipse.emf.edit.domain.EditingDomain;
import org.eclipse.emf.edit.provider.ViewerNotification;
import org.eclipse.epf.library.edit.IDefaultNameSetter;
import org.eclipse.epf.library.edit.ILibraryItemProvider;
import org.eclipse.epf.library.edit.LibraryEditPlugin;
import org.eclipse.epf.library.edit.PresentationContext;
import org.eclipse.epf.library.edit.command.MethodElementAddCommand;
import org.eclipse.epf.library.edit.util.LibraryEditConstants;
import org.eclipse.epf.library.edit.util.TngUtil;
import org.eclipse.epf.uma.ContentPackage;
import org.eclipse.epf.uma.Discipline;
import org.eclipse.epf.uma.DisciplineGrouping;
import org.eclipse.epf.uma.MethodElement;
import org.eclipse.epf.uma.MethodPlugin;
import org.eclipse.epf.uma.UmaFactory;
import org.eclipse.epf.uma.UmaPackage;
import org.eclipse.epf.uma.VariabilityElement;
import org.eclipse.epf.uma.util.UmaUtil;
/**
* The item provider adapter for a discipline grouping.
* <p>
* This class will be renamed as DisciplineGroupingItemProvider in EPF M5.
*
* @author Phong Nguyen Le
* @author Kelvin Low
* @since 1.0
*/
public class DisciplineCategoryItemProvider extends
org.eclipse.epf.uma.provider.DisciplineGroupingItemProvider implements
IDefaultNameSetter, ILibraryItemProvider {
protected Object parent;
/**
* Creates a new instance.
*/
public DisciplineCategoryItemProvider(AdapterFactory adapterFactory) {
super(adapterFactory);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.emf.edit.provider.ItemProviderAdapter#collectNewChildDescriptors(java.util.Collection,
* java.lang.Object)
*/
protected void collectNewChildDescriptors(Collection newChildDescriptors,
Object object) {
newChildDescriptors.add(createChildParameter(UmaPackage.eINSTANCE
.getDisciplineGrouping_Disciplines(), UmaFactory.eINSTANCE
.createDiscipline()));
}
/*
* (non-Javadoc)
*
* @see org.eclipse.emf.edit.provider.ItemProviderAdapter#getChildrenFeatures(java.lang.Object)
*/
public Collection getChildrenFeatures(Object object) {
if (childrenFeatures == null) {
childrenFeatures = new ArrayList();
childrenFeatures.add(UmaPackage.eINSTANCE
.getDisciplineGrouping_Disciplines());
}
return childrenFeatures;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.emf.edit.provider.ItemProviderAdapter#getParent(java.lang.Object)
*/
public Object getParent(Object object) {
if (parent != null) {
return parent;
}
if (object instanceof EObject) {
MethodPlugin plugin = UmaUtil.getMethodPlugin((EObject) object);
if (plugin != null) {
String[] path = {
LibraryEditPlugin.INSTANCE
.getString("_UI_Content_group") //$NON-NLS-1$
,
LibraryEditPlugin.INSTANCE
.getString("_UI_Standard_Categories_group") //$NON-NLS-1$
,
LibraryEditPlugin.INSTANCE
.getString("_UI_Disciplines_group") //$NON-NLS-1$
};
return TngUtil.getAdapter(plugin, path);
}
}
// MethodPlugin model = UmaUtil.getMethodPlugin((MethodElement) object);
// if(model == null) return null;
// IGroupContainer groupContainer = (IGroupContainer)
// TngUtil.getAdapter((EObject)model, IGroupContainer.class);
// if(groupContainer != null) {
// groupContainer = (IGroupContainer)
// groupContainer.getGroupItemProvider(LibraryEditPlugin.INSTANCE.getString("_UI_Content_group"));
// return
// groupContainer.getGroupItemProvider(LibraryEditPlugin.INSTANCE.getString("_UI_Disciplines_group"));
// }
// // MethodModelItemProvider itemProvider = (MethodModelItemProvider)
// TngUtil.getAdapter((EObject)model, MethodModelItemProvider.class);
// // if(itemProvider != null) {
// // return itemProvider.getDisciplineCategories();
// // }
return super.getParent(object);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.emf.edit.provider.ItemProviderAdapter#getChildren(java.lang.Object)
*/
public Collection getChildren(Object object) {
Collection children = super.getChildren(object);
if (children instanceof List)
Collections.sort((List) children, PresentationContext.INSTANCE
.getComparator());
return children;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.emf.edit.command.CreateChildCommand.Helper#getCreateChildImage(java.lang.Object,
* java.lang.Object, java.lang.Object, java.util.Collection)
*/
public Object getCreateChildImage(Object owner, Object feature,
Object child, Collection selection) {
if (feature instanceof EReference && child instanceof EObject) {
EReference reference = (EReference) feature;
EClass parentClass = reference.getEContainingClass();
EClass childClass = ((EObject) child).eClass();
String name = "full/ctool16/Create" + parentClass.getName() + "_" + reference.getName() + "_" + childClass.getName(); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
try {
return LibraryEditPlugin.INSTANCE.getImage(name);
} catch (MissingResourceException e) {
System.err.println(e.getMessage());
return null;
}
}
return EMFEditPlugin.INSTANCE.getImage("full/ctool16/CreateChild"); //$NON-NLS-1$
}
/*
* (non-Javadoc)
*
* @see org.eclipse.emf.edit.provider.ItemProviderAdapter#getText(java.lang.Object)
*/
public String getText(Object object) {
// String label = TngUtil.getLabel(object,
// getString("_UI_DisciplineGrouping_type"));
// ContentCategory category = (ContentCategory) object;
// if(category.getVariabilityBasedOnElement() != null) {
// MethodPlugin basePlugin =
// UmaUtil.getMethodPlugin(category.getVariabilityBasedOnElement());
// if(basePlugin != null) {
// label = label + " (inherited from " + basePlugin.getName() + ')';
// }
// }
// return label;
return TngUtil.getLabel((VariabilityElement) object,
getString("_UI_DisciplineGrouping_type"), true); //$NON-NLS-1$
}
/*
* (non-Javadoc)
*
* @see org.eclipse.epf.uma.provider.DisciplineGroupingItemProvider#notifyChanged(org.eclipse.emf.common.notify.Notification)
*/
public void notifyChanged(Notification notification) {
// commenting below, useful for stateful itemprovider.
//TngUtil.setDefaultName(this, notification);
// For stateless itemprovider, need this.
setDefaultName(notification);
updateChildren(notification);
ContentPackage pkg;
Discipline discipline;
switch (notification.getFeatureID(DisciplineGrouping.class)) {
case UmaPackage.DISCIPLINE_GROUPING__DISCIPLINES:
fireNotifyChanged(new ViewerNotification(notification, notification
.getNotifier(), true, false));
boolean refreshParent = false;
pkg = (ContentPackage) ((EObject) notification.getNotifier())
.eContainer();
switch (notification.getEventType()) {
case Notification.ADD:
discipline = (Discipline) notification.getNewValue();
if (discipline.eContainer() == null) {
pkg.getContentElements().add(discipline);
} else if (discipline.eContainer() == pkg) {
refreshParent = true;
}
break;
case Notification.ADD_MANY:
for (Iterator iter = ((Collection) notification.getNewValue())
.iterator(); iter.hasNext();) {
discipline = (Discipline) iter.next();
if (discipline.eContainer() == null) {
pkg.getContentElements().add(discipline);
} else if (discipline.eContainer() == pkg) {
refreshParent = true;
}
}
break;
case Notification.REMOVE:
case Notification.REMOVE_MANY:
refreshParent = true;
break;
}
if (refreshParent) {
fireNotifyChanged(new ViewerNotification(notification,
getParent(target), true, false));
}
return;
}
super.notifyChanged(notification);
}
protected boolean isWrappingNeeded(Object object) {
return true;
}
protected Object createWrapper(EObject object, EStructuralFeature feature,
Object value, int index) {
if (!isWrappingNeeded(object))
return value;
return TngUtil.createWrapper(adapterFactory, object, feature, value,
index);
}
// /* (non-Javadoc)
// * @see
// org.eclipse.emf.edit.provider.ItemProviderAdapter#getChildren(java.lang.Object)
// */
// public Collection getChildren(Object object) {
// Collection children = super.getChildren(object);
// for (Iterator iter = children.iterator(); iter.hasNext();) {
// Discipline child = (Discipline) iter.next();
// DisciplineItemProvider itemProvider = (DisciplineItemProvider)
// adapterFactory.adapt(child, ITreeItemContentProvider.class);
// itemProvider.setParent(object);
// }
// return children;
// }
public void setDefaultName(Notification msg) {
IDefaultNameSetter defaultNameSetter = this;
if (defaultNameSetter.getInterestedFeatureOwnerClass() != null) {
int featureId = msg.getFeatureID(defaultNameSetter
.getInterestedFeatureOwnerClass());
if (featureId == defaultNameSetter.getInterestedFeatureID()) {
switch (msg.getEventType()) {
case Notification.ADD:
setDefaultName(msg.getNewValue(), msg.getNotifier());
break;
case Notification.ADD_MANY:
for (Iterator iter = ((Collection) msg.getNewValue())
.iterator(); iter.hasNext();) {
setDefaultName(iter.next(), msg.getNotifier());
}
break;
}
}
}
}
private void setDefaultName(Object obj, Object parent) {
String baseName = null;
if (obj instanceof Discipline) {
baseName = LibraryEditConstants.NEW_DISCIPLINE;
}
if (baseName != null) {
// Making plugin level uniqueness of discipline, on removing discipline reference
// from discipline grouping, discipline goes back to toplevel causing duplicate.
TngUtil.setDefaultName(TngUtil.extract(
((ContentPackage) (((DisciplineGrouping) parent)
.eContainer())).getContentElements(),
Discipline.class), (MethodElement) obj,
LibraryEditConstants.NEW_DISCIPLINE);
}
}
/*
* (non-Javadoc)
*
* @see com.ibm.library.edit.IDefaultNameSetter#setDefaultName(java.lang.Object)
*/
public void setDefaultName(Object obj) {
String baseName = null;
if (obj instanceof Discipline) {
baseName = LibraryEditConstants.NEW_DISCIPLINE;
}
if (baseName != null) {
TngUtil.setDefaultName(((DisciplineGrouping) target)
.getDisciplines(), (MethodElement) obj, baseName);
}
}
/*
* (non-Javadoc)
*
* @see com.ibm.library.edit.IDefaultNameSetter#getInterestedFeatureID()
*/
public int getInterestedFeatureID() {
return UmaPackage.DISCIPLINE_GROUPING__DISCIPLINES;
}
/*
* (non-Javadoc)
*
* @see com.ibm.library.edit.IDefaultNameSetter#getInterestedFeatureOwnerClass()
*/
public Class getInterestedFeatureOwnerClass() {
return DisciplineGrouping.class;
}
protected Command createAddCommand(EditingDomain domain, EObject owner,
EStructuralFeature feature, Collection collection, int index) {
return new MethodElementAddCommand((AddCommand) super.createAddCommand(
domain, owner, feature, collection, index));
}
/*
* (non-Javadoc)
*
* @see com.ibm.library.edit.IMethodElementItemProvider#setParent(java.lang.Object)
*/
public void setParent(Object parent) {
this.parent = parent;
}
}